Lamp tester



' Nov. 24, 1925. 1,553,227

G. H. RIEBETH LAMP TESTER Filed Sept. 29, 1921 $601198 ZZZ 1 1G beef/r Patented Nov. 24-, 1925.

Ff 16 E GEORGE H. RIEBETH, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR T FRENCH BATTERY & CARBON 00., OF MADISON, WISCONSIN, A CORPORATION OF WISCONSIN.

LATMP TESTER.

Application filed September 29, 1921.

To all whom it may concern:

Be it known that I, Gnonen H. Rinnnrn, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented a new and useful Lamp Tester, of which the following is a specification.

My invention relates to improvements in lamp testers.

Its object is to provide a device of this kind which is exceedingly simple, durable and inexpensive in construction, the arrangement thereof providing, without manual ad justment of any kind, for the ready appli cation and removal of an ordinary battery or dry cell and the quick and easy testing of lamps of both single and double contact types. I

With the foregoing and other objects in view, which will appear in the following description, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter described and claimed.

In the drawings, Figs. 1 and 2 are perspective views of a device embodying my invention, Fig. 3 is a longitudinal sectional view thereof, and Figs. 4 and 5 are perspective views illustrating different types of lamps.

Referring to the drawings, it will be observed that my improvement includes forward and rear blocks and 11 joined b a reach or base 12. In practice, I sometimes employ the forward side of a drawer in lieu of the forward block 10, the bottom of the drawer in lieu of the base 12 and a separate block suitably anchored to the bottom of the drawer in lieu of the rear block 11. In either form, the parts function alike. On the inner side of the block 10 is an annular seat 13 adapted to receive the head of an ordinary tubular flashlight dry cell, as in dicated in dotted lines in Fig. 3 and designated by the numeral 141. A bore 15 in the block 10 opens into said seat 13, the axis thereof being oifset from the axis of the seat. Upper and lower guiding grooves 16 formed in the wall of said bore receive the ordinary opposed lugs 17 of lamps of the bayonet base types (Figs. 4 and 5). A wire 18, formed with a yielding contacting curve 18, lying adjacent to the inner face of the rear block 11, passes rearwardly through an opening 19 in said block, thence around the Serial No. 504,112.

block and forwardly to the inner face of the forward block 10, thence to one side, thence back upon itself, forn'iing a loop 18 in its turn. The extremity of said wire forms a yielding terminal 18 bent slightly forward and projecting through a slot 18 into the bore 15 in said block 10. A screw 20 threaded in the block 10 and engaging the loop 18 secures the wire 18 near one end thereof and a staple 21in the block 10 anchors said wire near its other end. The tester is supplied with a battery or dry cell let by inserting the head thereof in the seat 13 and depressing the opposite end against the tension of the curved extremity 18 of the wire 18, which extremity provides a yielding grip for the battery and a contacting element for one terminal thereof. The bore 15, being offset from the seat 13, receives the battery terminal 14? at one side thereof, since the terminal is located in axial relation with respect to the cylindrical battery structure. In testing a lamp having a central terminal 22 (Fig. 1), the base 23 of the lamp is in sorted in the bore 15, the lugs 17, if present, being received by the grooves 16. At the end of the thrust, the terminal 22 of the lamp engages the terminal 14* of the battery, while the opposite terminal of said battery is connected with said lamp through the wire 18 by engagement of the yielding end 18 thereof with the cap 241 of the base. In testing a lamp having double opposed terminals 25, the base 28 thereof is inserted in the bore 15. The lugs 17 sliding in the grooves 16 direct one of the terminals against the battery terminal 1 1 and the other terminal 25 against the end 18 of the wire 18. Thus, it will be seen that my novel battery arrangement and connection therefor, together with the described relation of battery terminals and lamp base receiving bore, provide for the ready employment of standard batteries and for ease and dispatch in the testing of lamps of various types. The adaptability of my device for application to a drawer structure is another advantageous feature, since such arrangement is often desired in connection with lamp cabinets of the drawer type.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without doparting from the spirit of my invention.

Having described my invention, what claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, a pair of spaced blocks, one block having a seat in its inner face adapted to receive the head of a battery, said block being formed with a lamp receiving bore communicating with said seat, the axis of the bore being offset from the axis of the seat, and a wire extending between said blocks, one end being carried by one block and providing a yielding contacting grip for the base of a battery, the other end being carried by the other block and providing a yielding terminal for a lamp to be tested.

2. In a device of the class described, a front support and a rear sup'ort, the former having an annular seat in its inner face adapted to snugly receive the head of a battery and also having a lamp receiving bore therein offset from said Seat so as to receive the head terminal of the battery at one side thereof, a wire secured to said supports and formed to provide a yielding contacting grip upon the rear support for the base of a batter i and a yielding terminal within the bore in said front support adjacent to the head terminal of a battery carried in said. supports.

3. In a device of the class described, a front support and a rear support, the former having an annular seat in its inner face adapted to snugly receive the head of a battery and formed with a lamp receiving bore having opposed lug guides in the wall thereof, said bore being offset from said seat so as to receive the head terminal of the battery at one side thereof, a wire secured to said supports and formed to provide a yielding contacting grip upon the rear support for the base of a battery and a yielding terminal within the bore in said front support adjacent to the head terminal of a battery carried in said supports.

4-. In a device of the class described, front and rear supports, the former having a bore therethrough adapted to receive the base of a lamp from its outer end and the head terminal of a battery from its inner end,

and a wire secured near its ends upon said supports, the extremity of the wire secured to the rear support being curved to form a yielding contacting grip for the base of a battery, the extremity of said wire secured to the front support being extended from its point of attachment in an angular direction with respect to the axis of the bore in said support and terminating within said bore at a point opposed to the position occupied by a battery terminal therein.

5. In a device of the class described, a support having an annular seat in its inner face adapted to snugly receive the head of a battery said support being formed with a lamp receiving bore therein having opposed lug guides in the wall thereof, said bore being offset from said seat so as to receive the head terminal of the battery at one side thereof, an electrical conductor having one terminal arranged to contact with the base of the battery and a second terminal iocated within the bore in said support adjacent to the head terminal of the battery.

6. In a device of the class described, a block having a bore therethrough of greater diameter than the head terminal of a dry cell battery, said bore being adapted to receive the base of a lamp from its outer end, a mounting to support a battery with the head terminal thereof within the inner end of said bore, and an electrical conductor having one terminal arranged to contact with the base of the battery and a second terminal reaching into said bore and terminating at a point adjacent to the position occupied by the battery terminal therein.

In testimony whereof, I have signed my name to this specification.

GEORGE I-I. RIEBETH. 

